Home > Subjects > Mathematics > Level 1 > 1.2 Algebraic methods (AS91027) > Subject content > Substituting values into formulae

- Subject: Mathematics
- AS: 91027
- Level: 1
- Credits: 4
- External

## Mathematics 1.2 Apply algebraic procedures in solving problems

### Substituting values into formulae

A formula is another word for a rule or equation that shows the relationship between different quantities. The plural of formula is formulae.

We can use formulae to work out values.

e.g. Use v = u + at to calculate v when u = 20, a = 10 and t = 5 Answer: v = 20 + 10 x 5 = 20 + 50 = 70

e.g. Use the formula C = to convert 320°F to degrees Celsius (°C)

Answer: C = = = 160°C

For more information and practice, see Formulae